Optical chameleon pigmentComposed of fragments of optical color-changing films with specific spectral characteristics. The optical color-changing film is an optical film with specific reflection spectral characteristics designed based on the principle of light interference of multi-layer films. It has substances with various refractive indices. Using vacuum coating technology, according to the requirements of the specific film system structure design, the thickness and sequence of each film layer are accurately controlled and deposited on the same carrier in sequence.

Has the following characteristics:

1. The angular chromism has simple and easily identifiable characteristics and meets the requirements of public identification.

2. The angular chromism and metallic texture cannot be replicated by devices such as high-precision scanners and color copiers.

3.Photochromic pigmentNon-toxic, odorless, pollution-free, stable structure, strong weather resistance, safe and reliable to use.